[[Development of new relational models for the age pattern of mortality]].

After a discussion of the Brass logit model of age-specific mortality, the author proposes five new relational models of the age pattern of mortality. These models and related mathematical extensions of the conventional logit model are assessed as to "their applicability as model life table systems and projection tools of age patterns of mortality in time series. The results indicate that [the] relational models serve as useful demographic tools for estimation and projection besides [their] original use in analytical studies of aging and mortality processes." (SUMMARY IN ENG)